Description: The MIB module for managing an IEEE 802.1AR DevID (Secure Device Identifier) Module. A DevID comprises: a DevID secret (a private key) stored confidentially by the DevID module and accessible only through operations provided by the module; a DevID certificate containing the corresponding public key and a subject name that identifies the device; and a (possibly null) certificate chain. Use of the DevID module signing operations allows the device to prove possession of the DevID secret, and thus assert its identity in authentication protocols. An initial IDevID provided by the device supplier can be used directly or can be used to provision one or more locally significant LDevIDs that reflect authorization decisions by the local network administrator with certificate fields that record those decisions. An SNMP agent can manage a network element comprising one or many devices. They can include component (such as individual line cards in a chassis) or aggregate devices (such as the chassis and its current complement of cards). In each case a DevID module binds DevIDs secrets and certificates to the device whose identity they can be used to assert: they remain attached to a component device if it is removed from the network element, and are not retained by the SNMP agent. The entPhysicalIndex defined by the ENTITY-MIB identifies each device managed by the agent and is used to index tables of managed objects for each device with a DevID module, so ENTITY-MIB objects are correlated with and can supplement DevID information cryptographically bound to the device. The initial version of this ieee8021DevIDMIB used the object name prefix 'devID' rather than 'ieee8021DevI' as recommended by RFC 4181. The 'devID' prefix has been retained for backwards compatibility and internal consistency.